Stamping or embossing machine.



UNITED STATES PATENT OFFICE.

MALCOLM F. WALLACE, OF BROCKTON, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY'COMPANY, 0F PATERSON. NEW JERSEY, A CORPORATION OF NEW JERSEY.

STAMPING OR EMBOSSING MACHINE.

Application filed March 27, 1912.

To all Whom it may concern Be it known that I, MALCOLM F. WAL- LACE, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented certain Improvements in Stamping or Embossing Machines, of which the following description, in connection with the accomhas been found advantageous to-emhoss the top stay after the lining has been stitched to the stay, and the work to be embossed therefore comprises a narrow leather strip having stitched to its lower edge the cloth lining for the quarters. The line of stitching is located closelyadjacent to the edge of the top stay but the upper edge of the lining material may extend distances beyond the line of stitching varying from substantially half the width of the top "stay to rye-sixteenth of an inch. 'hen work of ins character is positioned upon a flatsupport the portion of the lining which ex- I tends beyond the stitching and lies between the top stay and the surface of the support forms an irregularity in the surface of the top stay which results in an imperfect impression. i

One object of the present invention is to equip an embossing machine with a novel form of work support whereby work of the character described, or any work which comprises two or more layers of partially attached sheet material, may be positioned in a flat condition beneath the marking die and perfect impressions produced upon its surface. As herein shown this is effected by providing a. plate having a planework engaging surface disposed in the pathfof relative movement of the stamping die and plate and a thin edge at one side of said path adapted to be inserted between the top stay and the portion of the lining material projecting beyond the line of stitching. In using such a plate the top stay may be made to lie perfectly flat from the line of stitching at its lower edge to its upper edge while the projecting portion of the lining Specification of Letters Patent.

thin edge of the Patented Feb. 9,1915. Serial No. 686,517.

is deflected downwardly beneath the thin ridge and completely out of range of the (19. A

An important feature of the invention consists in the provision of means for re inforcing the thin edge of the supporting plate in order that it may not be bent by the pressure of the stamping die upon the work. As herein shown, this is effected by providing a sliding plate having one edge shaped to fit beneath the projecting thin edge of the supporting plate thus forming a solid abutment. '1 its movement into engagement with the "supporting plate the sliding plate, by its engagement with the lining material, will move the work into the proper position, that is, in such position that the line of stitching contacts with the supporting plate. The movable plate will also hold the work firmly in place by clamping the projecting portion of the lining material against the under surface of the supporting plate.

Another important feature of the invention consists in the provision of means for autoniatically moving the reinforcing and clamping plate into operative position. The advantage of such means will be apparent in that they relieve the operator of .the necessity of moving the reinf rcing ate by hand so that her whole attmtionjimy be devoted to presenting successive pieces of work to the machine. As herein shown, yieldingly acting means are connected with the reinforcing and clamping plate and tend to move the plate into operative position. A suitable connection with a treadle is provided whereby the plate may be retracted to permit the insertion of the work. It has been found advantageous to move the clamping plate yieldingly into operative position as in this way uniform treatment of each piece of work is insured regardless of its thickness. This isan important consideration inasmuch as it is customary to employ linings of a great variety of weight and thickness for different grades and styles of shoes.

These and other features of the invention will be best understood and appreciated from the following description of a preferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which,

Figure 1 is a viewin side elevation of an lOO ' secured to its lower end.

embossing machine in which the present invention is embodied; Fig. 2 is a view in perspective of the work supporting elements of the machine, a portion being broken away to show the position of the work; and Fig. 3 is a view in perspective of the mechanism for moving the clamping plate as seen from below.

The machine herein shown comprises a frame 10 having two branches, in the lower of which are mounted the work supporting elements and in the upper of which are formed vertical ways for a reciprocatory plunger 12 having a heated die carrier let The plunger 12 is reciprocated toward and from the work support through, a suitable connection with the driving shaft 11, these connections not being shown as. they form no part of the present invention. An desired form of clutch may be employe between the driving shaft 11 and the operating connections to the plunger, and the clutch may be controlled from the toe of a treadle 51 through the treadle rod 13. On its-lower face the die carrier 14 is provided with a stationary undercut flange and an oppositely disposed movable undercut plate 18 by which die 20 may be clamped in position upon the die carrier.

In the lower branch of the frame 10 is mounted 'a standard 22 having a slotted plate 2e secured to its upper surface. The slot in the plate 24 forms a dovetailed guideway extending from front to rear and in this guideway are mounted the plates 26 and 32. The plate 26 constitutes the support for the work to be embossed and is rigidly though adjustably retained in place by screws 27 passing through slots in its rear edge and threaded into the plate 24. The plane upper surface of the plate 26 is disposed in the path of movement of the reciprocatory die 20. The forward edge of this plate is beveled upon its under side to form a thin projecting or overhanging edge adapted to be inserted between the top stay 52 and the projecting edge of the lining 54, as clearly indicated in Fig. 2. \Vhen properly located the beveled edge of the plate 26 is slightly in advance of the front side of the die 20 so that a top stay properly positioned upon it will be he d with the line of stitching at one side of the impression. The straight edge of the plate 26 therefore acts as an edge gage to determine the distance of the impression from the stitch line and to insure parallelism between the impression and the edge of thework.

The plate 32, which is located in the front end of the guideway in the plate 24, comprises a reinforcing and work clamping member and has its rear edge beveled on its upper. surface upon an angle correspondthrough slots formed in the bottom of the gnideway in the plate 24. The plate 24- has on its lower surface a pair of lugs in which is journalcd a transverse rock shaft 38 having twosleeves 4O rigidly so cured thereto each having an ear projecting upwardly anddisposed between the respective pairs of cars on the clamping plate 32. The rock shaft 38 is normally turned in such a direction as to move the clampir;

plate 32 toward the stationary plate 26 by means of a spring 4-2 which encircles a rod M secured at its forward end to a forked arm 46 fast to the rock shaft 38. At its rear end the rod al is pivotally connected with a bell crank lever 48 which is connected to a treadle rod whereby the rod 44 may be moved rearwardly and the clamping plate 32 moved forwardly to permit the insertion of the work. Preferably the treadle rod 50 will be connected to the hel of the treadle by which the machine is controlled so that whenever the operator depresses this treadle to set the machine in operation the spring 42 will be permitted to act and move the clamping plate 32 to operative position.

In the normal operation of the machine the treadle rod 50 will be depressed, preferably from the heel of the starting trzadle, and the clamping plate 32 moved forwardly. The operator then separates the projecting edge of the lining material from. the top stay with her fingers and places the work in position upon the plate 26 as indicated in Fig. 2 with the top stay 52 lying smoothly upon the upper surface of the plate 26 and the projecting edge of the lining passing beneath the thin beveled front edge of the plate. The treadle rod 50 is then raised, simultaneously with startin the machine or not, as desired, and the p ate 32 is automatically and yieldingly moved into its operative position in which it positions and clamps the work and also reinforces the thin forward edge of the plate 26 so that the pressure of the die shall not bend it. \Vhen the machine has started, the plunger 12 carries the die 20 downwardly, pressing it upon the surface of the work where it remains for a sufficient length of time to produce a perfect impression. It is then raised, the treadle rod 50 depressed to retract the plate 32 and the work removed leaving the machine in readiness for operating upon a. new piece. I a

The machine herein shown has been described as adapted for embossing a top stay having a lining secured to one edge, but it will be ap arent that the invention is not limited in its application to embossing machines alone nor to machines for operating III") menus upon a top stay, but may be employed to good advantage in any machine for operating upon work which comprises two or more layers of partially attached sheet ma terial.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A machine of the class described having, in combination, a movable stamping head, and a work support disposed in the path of movement of the head presenting a plane work-engaging surface and a thin straight overhanging edge adapted to be inserted between partially attached layers of sheet material.

2. A machine of the class described having, in combination, a movable stamping head, and a work support having a straight undercut edge disposed at one side of the path of movement of the head and a plane work-engaging surface disposed in the path of movement of the head.

3. A machine of the class described having, in combination, a reciprocatory stamping die, and a cooperating work support comprising a plate disposed at right angles to the path of movement of the stamping die with its surface in said path and having an edge beveled upon the side opposite to the stamping die and disposed in parallel relation to one side of the die. 7

4. A machine of the class described having, in combination, a supportin plate, and a stamping die movable towar and from one side of the plate, the plate having a straight edge disposed at one side of the path of the stamping die and being beveled upon one surface toward said straight edge, whereby it is adapted to engage a line of stitching in the work.

. 5. A machine of the class described having, in combination, a. movable stamping head, a work support disposed in the path of the head presenting a plane work-engaging surface. and a plate mounted for movement toward and from the work support and having a surface located in the plane of the Work-engaging surface of the support.

6. A machine of the class described having, in combination, a. movable stamping die, and work supporting and positioning means comprising a plate located in the path of movement of the stamping die and beveled upon one of its surfaces to form a thin edge, and a relatively movable plate beveled upon its opposite surface.

7. A machine of the class described having. in combination, a relatively movable stamping die and work support, the work support comprising a plate having a plane surface and a. thin edge adapted to he inserted between layers of the work, and means for affording a reinforcing backing to the thin edge of the plate after the work has been positioned thereon.

8. A machine of the class described having, in combination, a relatively movable stamping die and work support, the work support comprising a plate beveled upon the side opposite to the stamping die to form a thin edge adapted to be inserted between a top stay and a lining stitched at one edge to the top stay. and means movable into engagemcnt with the work when so positioned upon the plate to support the thin edge of the plate.

9. A machine of the class described having, in combination, a relatively movable stamping die and work support, the work support comprising a plate having a thin edge adapted to be inserted between partially attached layers of work, and a yieldihgly movable device for reinforcing the thin edge of the support against the working pressure of the die.

10. A machine of the class described having. in combination, a relatively movable stamping die and work support, the work support having a thin edge adapted to be inserted between partially attached layers of work and a surface extending at an angle to the path of movement of the die and support, and means for engaging and clamping one layer of work against said surface.

11. A machine of the class described having, in combination, a relatively movable stamping die and work support, the work support having a surfacedisposed at right angles to the path of movement of the die and support for supporting one of two partially att' ched layers of work and a clamping surf: e against which the other layer of work nay be clamped.

12. A iliaclline of the class described having, in chmbination, a relatively movable stamping die and work support, the work support having a plane surface for presenting one of two partially attached layers of work to the action of the die and an inclined deflecting surface for holding the other layer of the work out of range of the die and being adjustably maintained in the path of the die.

13. A machine of the class described having, in combination, a relatively movable stamping die and work support, the work support comprising a standard having a guidewav extending at right angles to the path of relative movement of the die and support. a plate having a thin overhanging edge adjustably mounted in one end of the guidcway and a second plate mounted in the other end of the guidewav and movable towa d and from the overhanging edge of the plate first mentioned.

11. machine of the class described having. in combination, a reciprocatory die carrier, it f-illl l'h'fil disposed in l ne, with the of the carrier and having 1% thin evlgtn 21 plate niovulile toward m the oils. of the s ppoi't. Yielding or moving the pinto in one direction will manually opewitetl Elltflll'lltv for moving the plate in the, oth r :li'z'ee 11 1 mneliine of th elm le: -ribe l lnivinfo; in tonibinntion. :1 mo in carrier hav inn ne otiated therewith o tlovice for op-- emting upon tho sin-fa se of sheet n'iizt'arizil and a work htlDDOil, hit. ing :1 thin overhunging' (tljlP tltlztDl'CLl to ho lh*-'0tttti between hit crs of p:- nlly Mitchell. shew lliflttfilitl to support one of tho livers in lint Condition in tho path of the op rating ltPYltjQ and to determine the position. of the vim-l; h engaging the line of stiteliinfl.

it. A ninehino of the class descr bed having. in combination, a rolativolv movable (lie and \\()ll support. the A'Olk support having upon the side toward the (lie :1 surline for presenting one portion of the Work in :1 po:-;ition substantially at right angles to the path of relative movement of the die and support anti upon tlnother shit: it do fleeting stti'l tlt'u for holding: portion of tho vorlv; out of range of the die llntl also a straight Uri; gaging edge disposed in parnllel nehition to one side of the (lie and so arranged {IE to engage a line of stitchii'ig uniting the two portions oi. tho worln l7. .1 nnnshine of the class inscribed linv ing, in oonihinutiot'i. a relatively lIlO'tllJlt? LllB Mild Wtli'li support. the Work support having upon the side tmvnnl the the a sunt'noe tor DltfSQtli'iitQ one portion of the ivorl: in z position iw'lllJSljAIilFtlllY :it right iinglos to the path ot relative nioveinr-nt of the (lie and support and upon the other ii deflecting face disposed at an angle to the vv'orleprt.senting face and also ii straight \vorl; gaging: edge disposed in parallel relation to one Fltlt of the Lil? and so arranged to engage at line of stitching uniting the two portions of the WOX'k.

18. A UlllClllIlfi of the Cltsfi described having in conibii'mtion, a rociprocntory tile :1 n'iounting' having Ll fneo disposed t l-n5 vcrsoly to the path of inovonieiit of the LliC,

it) to l :iznl trezitlle z'iri'zintiotl to control tho op- 53 2' erzition of the nnnil'iinc throngl icl clutch and also the position of the clamping; ii view.

3H. A power operated nmehi: i inn :1 rehitwely movable support and l: Filip i5 port having :1 thin portion mln n. to )t, insortwl hotvvoon par nllv zmzi e in. ,s

:i inoviihle roinlorcingzj ilovice for i portion of tho sum it flllii trozulle arranged to eontrol the starting of 7i face, and the other incniher being disposed opponito to Stlld'l'llltl, projeotinn wiggle and having :i supporting surf- 3o ili (not sulstnntiully in the piano oi; tl'izit. i montinned.

2!. A n'nichine of the class tit-strihetl hawing, in combination, a rooiprocniuiy 119,85 poi-vet actuating: means thei'eioi, tn'iport: having a gaging: portion Jinn treuille having (:onneei'im for eoiitroih the (initiating men 2:; Purim-m t? time in flllfl for Ming ing the, \R'Ui'l up to the {12: f r4} inn portion prelin'iiniirilv to SElQftl'lU- the Rift chine in operation.

in testimony vvlnai'eot il. lizivt; iisirneto this specification in tho {ll'LfiHCfi i tn 0 ubsoriloing witnesses.

' ood i Ill-\LCOLAI F. WALLACE.

Witnesses: 7

RA LPII ll-v1.1

Correction in Letters Patent No. 1,127,553.

It is hereby certified that in Letters Patent No. 1,127,553, granted February 9, 1915, upon the application of Malcolm F. Wallace, of Brockton, Massachusetts, for an improvement in "Stamping or Embossing Machines, an error appears in the printed specification requiring correction as follows: Page 4, lines 44-46, claim 17, strike out the words and so arranged as to engage a line of stitching uniting the two poi-lions of the work; and that the said Letters Patent shoulil be read the same may conform to the record of the case with this correction therein that in the PatenUOfiice.

Signed and sealed this 7th day of September, A. D., 1915.

J. T. NEWTON,

wActing Commissioner of Patents.

[snark] 

